Alpakka S3 / Play Framework Configuration

Akka Akka Streams & Alpakka
1

Alpakka S3 doesn’t appear to pick up the configuration from Play Framework’s “application.conf” automatically. To get past configuration errors I needed to do the following:

@Singleton
class LogFileController @Inject() (
  cc: ControllerComponents,
  authAction: AuthAction,
  system: ActorSystem
)(implicit ec: ExecutionContext)
  extends AbstractController(cc)
     with Logging
{
  private val s3settings: S3Settings = S3Ext(system).settings

...

  def list() =
    authAction { authdReq =>
      val s_contents = S3
        .listBucket(s3Bucket, prefix = None)
        .withAttributes(S3Attributes.settings(s3settings))
...

My application.conf file contains the following:

alpakka.s3 {
  aws {
    credentials {
      provider = static
      access-key-id = "MY_ACCESS_KEY"
      access-key-id = ${?MINIO_KEY}
      secret-access-key = "SECRET_ACCESS_KEY"
      secret-access-key = ${?MINIO_SECRET}
    }
    region {
      provider = static
      default-region = "us-east-1"
      default-region = ${?S3_REGION}
    }
  }
  endpoint-url = "http://minio.bebop:80"
  endpoint-url = ${?MINIO_ENDPOINT}
  path-style-access = force
  access-style = path
}

Am I missing something here? Why isn’t the config being picked up automatically?

Thanks.